If you got a huge header, you can try to show to different images each time a user loads your site. You can rotate as many images as you want. But here for example we are giving you a example of three images. Hope this helps some.

One Step Procedure:

Note: Do take backup of your theme before you try this.

01. First rename your images with a underscore like these:

– randomimage_1.gif
– randomimage_2.gif
– randomimage_3.gif

02. Add this below code in your header.php file or the file where the code for your header image is placed: